Question

How to access elements of matrix in R

Answer 1

vec <- c(1, 2, 3, 4, 5, 6, 7, 8)
m <- matrix(vec, nrow = 2, ncol = 4)

print(m)

print(m[1, 1])
print(m[2, 4])
  
  
  
  
    
    
# run:
#
#      [,1] [,2] [,3] [,4]
# [1,]    1    3    5    7
# [2,]    2    4    6    8
# [1] 1
# [1] 8
#

 

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